justifier vs justify

justifier is a noun but justify is not a noun.

Word	Noun	Adjective	Verb	Adverb
justifier	Yes	No	No	No
justify	No	No	Yes	No

justifier (noun)	justify (noun)
a person who argues to defend or justify some policy or institution

justifier (verb)	justify (verb)
	adjust the spaces between words
	show to be right by providing justification or proof
	(used of God) declare innocent; absolve from the penalty of sin